Window.



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,PATENTED PEB. 4'

A. STRAUBHAAR. ,WINDow 'APPLICATION FILED JULY 16. 1907.

| I l l l l l l l I l r l l I I l l l I l l l l I l a I l l l l ll 1 I l l l I 1 I l 1 A 1 1 l l l r u I n l I l l x x l l l l l l l I u u v l l l l mmwhnmmuwu uwuauauww UNITED s'rATEs PATENT OFFICE.

AUGUST STRABHAAR, OF'PA'IERSON, NEW JERSEY.

WINDOW.

specification of letters Patent.

Patented Feb. 4, 1908.

Application filed July 16. 1907. Serial No. 383.987.'

-To all 'whom 'it may concern:

Be it known that l, AUGUST S'rnAUBnAAn, a .citizen of Germany, residing` at Paterson, Passaic county, State of New Jersey, have invented new and useful Improvements' in Windows,A of which thek following is a specilication. v

- This invention relatesto a window which is so constructed that when closed, bot-h sliding sashes will be brought into vertical alinement.

ing from the exterior.

The invention further comprises means for ermitting the ready removal of the sashes rom the window frame, so that cleaning is l facilitated and repairs may be easily made.

imperforate, to constitute a sto pin 24,-is somewhat longer than up means, and Fig. 1() an end view of Fig. 9.

.- upper sash 22 is provided with a ln the accompanying drawing: Figure 1 is an inner elevation of my improved window Fig. 2 an enlarged vertical section on line 22, Fig. 1,V with the sashes omitted; Fig. 3 a section on line.v3`-v3, Fig. 1, showing the `window closed; Fig. 4 a vertical section through the 'sashes; Fig. 5 a horizontal section on line 5-5 Fig. 3, with the lower sash artly raised; :Fig '6 a horizontal section on ine 6-6, Fig. 2; Figs. 7 and 8 are details of modifications of the guide pins; Fig. 9 a section of a modification of the pin-operating The -Window frame 15 i's provided with an .outer groove 16 and an inner groove 17, the

lower outwardly curved end 18 of which com` municates with the lower end of groove 16. A transverse by-pass A19 extending through part' strip 20 further connects the grooves 16 an 17 at about their center. O posite by-pass 19, the inside window bead) 52, is extending Each st e 21- of the air of pins ese, lower er pin 23, and serveslfor the attachment o the sash-i cord 25 that carries counter-weight 26 and asses over pulley 27 on top of groove 16:` gash-cord 25 isv referably provided with a looped lower end) 28 slipped over head 29 of in 24, so that it may be readily disconnected rom lthe-latter.

The lower sash 3() isconstructed similarly to the u Vper sash, that is to say, each ofits Stiles 3 1 as an upper pin 32"-and a lower pin 33 project' in to groove 16. To lower pin 33 1s remova ly secured the looped lower end of sash-cord 34 carrying counter-weight 35.

across such by-p ass.

23, 24 engaging groove 16. Of t In this way draft is excluded and the `sashes. are held against unauthorized open- ;sash may be as freely 'lhis sash-cord passes from pin 33 through groove 18, 17, to a pulley 36 on top of the latter.

The bottom rail 37 of upper sash 22 has a rabheted lower side adapted to register with a correspondingly rabbeted'upper rail 38 of lower sash 30. A spring latch 39 on rail 33, adapted to engage a keeper 40 of rail 37,

locks the window in its closed position.

The pins ofl the upper sash, as well as those of-the lower sash, engage outer groove 16 when the window is closed, so that both sashes are then located in a common vertical plane, (Fig. 4). To open the lower sash, latch 39 is ,withdrawn and upper end of sash 3() is tilted inward, so that its upper pins 32 will swing through by-pass 19 into inner groove 17. When the lower sash is now pushed up, its bottom pins 33 will, through inclined section 18, likewise enter groove 17 owing to the inward pull of sash-cord 34. The lower sash may now be freely moved up and down along groove 17, while the upper moved along the now vacated groove 16. To close the window the lower sash isV pulleddown so that its lower pins 33 renter the bottom of groove 16,'and is then swung outward at its top to push upper pins 32 through by-pass 19, back into groove 16.

Means are provlded for permitting'the guide pins to be entirely'withdrawn from the grooves, sothat the sashes may be readily removed from the frame. To this'ef'fect the upper pins 23, 32 are made in the form of spring bolts operable by handles 41, by means of which they may be retracted to clear grooves 16, 17. The lower pins 24, 3 3

Amay be withdrawn from groove 17 by means of communlcating branch grooves 42 nor-I s43. :T his branch groove -the.inside bead 52 disection 18 of mally closed by plu 42 extends throng rectly above the lower curved groove 17. 'i

To remove the sashes, theyaresucces sively brought into their lowermost position and after the upper pins have been retracted,

the lower pins are withdrawn through curved section., 18 and branch 42 the latter permitting the withdrawal of such pms after a minimum lift of the sashes along 0frooves. 17

Catches 44 on frame 15 adapted ected over lower sash 30, serve to prevent tilting of the latter in case pins 32 become disengaged from their guide grooves. It desired, the` upper as well as the lower guide pins may be provided with anti-friction rubber sleeves 45, (Figs. 7 and 8), to facilitate their movement along the grooves.

Figs. 9 and 10 illustrate lnodiiied means for retracting the upperl pins from the grooves. Here upper pin 46 is influenced by a spring 47, to the upper free end of which is hinged at 48 a ingerepiece 49. When this finger-piece is swung down, it engagesan oli'- set 50 of sash frame 51 and thereby locks the pin in its outward position. When the iinger-piece is swung up, spring 47 is released to withdraw the pin from the groove.'

It will be seen that by my invention both sashes occupy a common vertical plane'when the Window is closed. This improves the appearance of the window, prevents the deposit of dust on the top rail of the lower sash, Y and effectively holds the sashes against unauthorized opening. If the window to be cleaned or repaired, the sashes may be readily removed from the frame by withdrawing the guide pins from the grooves and disconnecting the cords from the pins.

I claim: A window provided Withan outer groove, an inner groove having a lower curved section communicating with the outer groove, a by-pass connecting the grooves, a branch groove opening into the inner groove directly above the lower curved section thereof, a pair of sashes, and upper and lower pins Von the sashes-adapted to engagethe by-pass and branch groove respectively, substantially as specied. 1

Signed by me at New York city, (Manhattan,) N. Y., this 13th day o f July 1907.

AUGUST STRAUBHAAR; Y

Witnesses: WILLIAM SCHULZ, FRANK v. BRIEsEN. 

